You
can change the icon
of the
minimized form on the taskbar to send messages to the user.
Preparations
Add 1 ImageList to
your form and add 3 Icons (files with ICO extension) to it. Add 1 Timer
Control. Set the Timer Interval property to 2000. You can increase/decrease this number to change the Icons swapping
rate.
Form Code
Private Sub
Timer1_Timer() Static ImageNum As
Integer ImageNum = ImageNum + 1 If
ImageNum > 3 Then ImageNum = 1 Me.Icon =
ImageList1.ListImages(ImageNum).Picture End Sub